Eli Lilly and Company

Midmark Corporation

Mark Gerard Diller

Steven Michael Madland

Bobby Lee Walters

Shannon Marie-Lynn Hoste

William Godwin Atterbury

Douglas E Boyd

Peter Andrew Gaydos

Randall H Evers

Donna Marie Taylor

Douglas Edward Boyd

A medication injector apparatus such as an injection pen. The injection pen includes a resettable, cartridge plunger drive assembly including an axially floating nut, a cartridge plunger engaging screw, and a drive clutch movable with the nut and which when rotated causes the screw to screw through the nut. When a cartridge assembly is mounted to the pen base, the floating nut and drive clutch are shifted proximally such that the drive clutch is in torque transmitting engagement with a rotatable drive member of the pen, such that rotation of that drive member results in drive screw advancement through the nut in the distal direction. When the cartridge assembly is not mounted to the pen base, the floating nut and drive clutch are biased distally to disengage the drive clutch from torque transmitting engagement with the rotatable drive member and to thereby allow the drive screw to be reset proximally through the nut to a position more retracted within the pen base. The injection pen also may include an injection clicker assembly having a collar arranged coaxially on a drive sleeve and which oscillates axially on the drive sleeve that rotates during medication dispensing to provide an audible clicking sound that indicates injecting use of the pen. The injection pen also may include a doseable quantity identifier that uses a rotational matrix and a sensor for electrically sensing the arrangement of the dose setting mechanism of the pen, which identifier may be part of a therapeutic dose indicating system that utilizes a cartridge recognizer to recognize a concentration of medication so as to allow an automatic determination of a therapeutic dose. The injection pen further may include an assembly for selectively rotating a drive sleeve of the pen, which assembly has a dial that rotates out during dose setting and which translates in without rotation during dose injecting.

Medication injector apparatus with drive assembly that facilitates reset

A medication injector apparatus such as an injection pen. The injection pen may include a doseable quantity identifier that uses a rotational matrix and a sensor for electrically sensing the arrangement of the dose setting mechanism of the the pen, which identifier may be part of a therapeutic dose indicating system that utilizes a cartridge recognizer to recognize a concentration of medication so as to allow an automatic determination of a therapeutic dose.

A patient procedures chair is provided with a system that permits ready interchangeability of patient headrests with ease of positioning and locking in position while at the same time guarding against inadvertent axial removal.

Procedure chair with interchangeable headrests

The headrest and side rails of a patient procedures chair are mounted on posts which are slidably received in elongated, self-aligning or floating plastic bearings. With this construction, any misalignment of the posts due to manufacturing tolerances will be accounted for as the bearings readjust themselves. Clamping devices engage the bearings and cause deformation to increase the frictional engagement of the bearings with the posts to the point where the posts are locked into place. In this regard, actuation of the clamps is accomplished by large knobs that protrude from the back of the chair for ready accessibility.

Floating bearing and clamp system for patient procedures chair mounting and positioning posts

A medication injector apparatus such as an injection pen. The injection pen includes a resettable, cartridge plunger drive assembly including an axially floating nut, a cartridge plunger engaging screw, and a drive clutch movable with the nut and which when rotated causes the screw to screw through the nut. When a cartridge assembly is mounted to the pen base, the floating nut and drive clutch are shifted proximally such that the drive clutch is in torque transmitting engagement with a rotatable drive member of the pen, such that rotation of that drive member results in drive screw advancement through the nut in the distal direction. The injection pen also may include an injection clicker assembly having a collar arranged coaxially on a drive sleeve and which oscillates axially on the drive sleeve that rotates during medication dispensing to provide an audible clicking sound that indicates injecting use of the pen.

A foot control for controlling power-driven functions of a medical apparatus which positions a patient in a variety of examination and treatment positions. The foot control includes a membrane switch and a flexible keypad overlying the membrane switch. The flexible keypad is configured to actuate switch elements of the membrane switch in response to selective pressure applied on the keypad by a user's foot. Different configurations of keypads are interchangeable on the foot control to change the control functionality of the foot control while the membrane switch remains unchanged.

Growing community of inventors

Clayton, OH, United States of America

Mark Gerard Diller